您好我想用tblrestocklog及其相应的stockno更新我的productno。
这是我的样本表：
StockNo ProductNo Quantity PurchasedDate ExpirationDate
1017123002 25373 10 2016-10-22 2017-02-10
1017123003 25370 10 2016-10-22 2018-11-21
1017123006 25370 10 2016-10-22 2018-03-30
1017123005 25370 10 2016-10-22 2018-04-22
现在我想用最小的库存号1017123003更新Product 25370。
我尝试了这个查询和其他东西，但它总是给我一个错误信息..
UPDATE tblrestocklog
SET quantity = 20
WHERE MIN(stockno) AND productno = 25370;
答案 0 :(得分：2)
您可以在window.onload = createList;
function addEvent(object, evName, fnName, cap) {
if (object.attachEvent)
object.attachEvent("on" + evName, fnName);
else if (object.addEventListener)
object.addEventListener(evName, fnName, cap);
}
function uniqueElemText(elemName) {
elems = document.getElementsByTagName(elemName);
elemsArray = new Array();
for (var i=0; i<elems.length; i++) elemsArray[i]=elems[i].innerHTML;
elemsArray.sort();
for (i=0; i<elemsArray.length-1; i++) {
if (elemsArray[i]==elemsArray[i+1]) {
elemsArray.splice(i+1,1);
i--;
}
}
return elemsArray;
}
function createList(){
var option;
var characters = new Array();
var select = document.createElement('select');
select.setAttribute('id', 'charList');
select.addEventListener('change', filter, false);
var charBox = document.getElementById('characterList');
charBox.innerHTML = '<p>Show Only Line By:</p>';
charBox.appendChild(select);
var tempChar = document.getElementsByTagName('h3');
for(var i = 0; i < tempChar.length; i++)
if(characters.indexOf(tempChar[i].innerHTML) == -1)
characters.push(tempChar[i].innerHTML);
delete tempChar;
characters.sort();
option = document.createElement("option");
option.text = "Show All Character Lines";
option.value = 'ALL';
select.add(option);
for(var i = 0; i < characters.length; i++)
{
option = document.createElement("option");
option.text = characters[i];
option.value = characters[i];
select.add(option);
}
}
function filter(){
var scene = document.getElementById('scene');
var elemList = scene.getElementsByTagName('*');
var list = document.getElementById('charList');
var character = list.options[list.selectedIndex].value;
var hide = false;
for (var i = 0; i < elemList.length; i++) {
var elem = elemList[i];
if (elem.tagName == "H3") {
hide = (elemList[i].innerHTML.indexOf(character) == -1)
}
if (hide) {
elem.style.opacity = 0.0;
} else {
elem.style.opacity = 1.0;
}
}
}
声明中使用order by和limit：
update答案 1 :(得分：1)
这是另一种方法
UPDATE tblrestocklog A
JOIN (SELECT Min(stockno) min_stockno,
productno
FROM tblrestocklog p
GROUP BY productno) B
ON A.productno = B.productno
AND A.stockno = B.min_stockno
SET quantity = 20
WHERE productno = 25370
您可以从productno子句中删除where过滤器，以便为所有productno
答案 2 :(得分：0)
尝试以下查询：
UPDATE tblrestocklog
SET quantity = 20
WHERE productno = 25370
AND stockno IN (SELECT MIN(stockno))